// Example testing sketch for various DHT humidity/temperature sensors
// Written by ladyada, modified for integer use, public domain

#include "TinyDHT.h"

#define DHTPIN 2  // DHT connected to Arduino Uno Digital Pin 2

// Uncomment whatever type you're using!
//#define DHTTYPE DHT11   // DHT 11 
#define DHTTYPE DHT22   // DHT 22  (AM2302)
//#define DHTTYPE DHT21   // DHT 21 (AM2301)


// Connect pin 1 (on the left) of the sensor to +5V
// Connect pin 2 of the sensor to whatever your DHTPIN is
// Connect pin 4 (on the right) of the sensor to GROUND
// Connect a 10K resistor from pin 2 (data) to pin 1 (power) 
//    of the sensor

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(9600); // Output status on Uno serial monitor
  Serial.println("DHTxx test!");
 
  dht.begin();
}

void loop() {
  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  int8_t h = dht.readHumidity();
  int16_t t = dht.readTemperature(1);

  // check if returns are valid then something went wrong!
  if ( t == BAD_TEMP || h == BAD_HUM ) { // if error conditions          
    Serial.println("Failed to read from DHT");
  } else {
    Serial.print("Humidity: "); 
    Serial.print(h);
    Serial.print(" %\t");
    Serial.print("Temperature: "); 
    Serial.print(t);
    Serial.println(" *C");
  }
  delay(2000);
}
